15 Structure
15.24 R-I DVM: Low resistance measurement using 3458A, current force
(A.01.20)
[Supported Analyzer]
B1500A
[Description]
Measures the low resistance of a 2-terminal device. SMU forces current and DVM (3458A) measures voltage
between terminals. Resistance is calculated from the output value of a current and measured value of a voltage
between terminals. For the purpose of excluding thermoelectric power, this test is designed to measure
resistance again by switching the direction of voltage and to get the average value of resistance as a test result.
[Device Under Test]
Resistor element, 2 terminals
[Required Modules and Accessories]
Agilent 3458A digital multimeter 1 unit
GPIB cable
[Required Test Definition]
Measure Diff-V
[Device Parameters]
L: Resistor length
W: Resistor width
Temp: Temperature (deg C)
[Test Parameters]
IntegTime: Integration time
Port1: SMU connected to resistor, current output
I1: Applied current
V1Limit: Port1 voltage compliance
Port2: SMU connected to resistor, constant voltage output
GPIB_Adr: GPIB address of DVM
[Extended Test Parameters]
V2: Port2 output voltage
HoldTime: Hold time
DelayTime: Delay time
PortMinRng: Minimum range for port current measurement
[Measurement Parameters]
[Measurement Parameters for first measurement (Vpos)]
Vport1: Port1 voltage
[Measurement Parameters for second measurement (Vneg)]
Vport2: Port2 voltage
[X-Y Plot]
[X-Y Plot for first measurement (Vpos)]
X axis: Applied current Iport1 (LINEAR)
Y1 axis: Measured voltage Vport1 (LINEAR)
Agilent EasyEXPERT Application Library Reference, Edition 8
15-41
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